Prime numbers in which the sum of the external digits = the sum of the internal digits.

Terms

a(0) =1021a(1) =1087a(2) =1201a(3) =1223a(4) =1289a(5) =1447a(6) =1559a(7) =1627a(8) =2053a(9) =2143a(10) =2389a(11) =2503a(12) =2659a(13) =2749a(14) =3041a(15) =3221a(16) =3467a(17) =3557a(18) =3917a(19) =4051a(20) =4073a(21) =4231a(22) =4253a(23) =4297a(24) =4523a(25) =4567a(26) =4657a(27) =4679a(28) =4703a(29) =5443